Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

David R Grasso, PHD

Clinical Psychologist in Atascadero, CA · enumerated 2009.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1902133325

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name David R Grasso

Credential PHD

Sex Male

Practice address 10333 El Camino Real, Atascadero, CA, 93422

Phone (805) 468-2000

Enumeration date Nov 5, 2009

Last updated in NPPES Nov 5, 2009

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSY22297 (CA) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1902133325 active?

Yes, as of the latest NPPES snapshot, NPI 1902133325 is active (record last updated 2009-11-05).

How do I verify David Grasso's NPI record?

Cross-check NPI 1902133325 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-11-05.